The store hosts free and paid applications.[6] An example of applications available in the store includes the game Plants vs. Zombies.[7] The Store has been described as being like Google Play, but for "apps on the web".[8] A visual and UI overhaul of the store was announced on October 25, 2011.[9]

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Some commentators have questioned the need for an online app store, indicating that what is installed within the system ought to be freely available rather than give the illusion it has been "imported" from somewhere. Ryan Paul of Ars Technica said on December 9, 2010: "The way that users consume applications in the desktop and mobile world is fundamentally different than the way that they do it on the Web—where paywalls are often reviled and there is little distinction between content and software. In such an environment, does the application store model make any sense? We are not convinced...Aside from gaming, the idea of an application store in a Web browser—where installation is little more than bookmarking—seems counterintuitive and leaves us with the impression that the entire exercise is a solution in search of a problem."[10]

In January 2014, media outlets exposed a recent trend of developers selling the rights to their Chrome extensions to unknown third-party companies (for as much as "four-figure" amounts), who then silently push updates that incorporate previously non-existent adware into the extensions.[11] The two extensions singled out by these reports, Tweet This Page and Add to Feedly, were pulled from Chrome Web Store by Google on January 19, 2014.[12] The problem was not solved, and in January 2018 researchers from security firm ICEBRG have uncovered four malicious extensions — HTTP Request Header, Nyoogle, Stickies, and Lite Bookmarks — with more than 500,000 combined downloads from the Google Chrome Web Store, found to be malicious.[13]

Five percent of computer browser visits to Google owned websites are altered by computer programs that inject their own ads into pages.[14][15][16] Researchers have identified 50,870 Google Chrome extensions and 34,407 programs that injected ads. Thirty-eight percent of extensions and 17 percent of programs were catalogued as malware, the rest being potentially unwanted adware-type applications.

One month after the store opened, TechCrunch reported that the best-selling app earned just $165 a week.[17]

In December 2011, TechCrunch reported that the redesign of the Web Store had been a "boon for developers", with the remake seeming to "catalyze a big increase in traffic, across downloads, users, and total number of apps".[18]
As of June 2012, users had installed 750 million apps from the Chrome Web Store.[19]